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Double Rifles, Single Shots & Combinations >> Building Double Rifles & Gunsmithing

Marrakai
.416 member

Reged: 09/01/03
Posts: 3592
Loc: Darwin, Top End of Australia

Re: Building a Double Rifle
16/09/07 08:54 PM

For those interested, here is a pic of the firing-pin holes in the breech-face of a Greener 'Empire' shotgun, in this case my .577 x 2 3/4 double rifle conversion:

For comparison, here is an early British 12-bore hammer shotgun:

I hope this points out the difference. If using the latter action for a DR conversion (...and I wouldn't!), then bushing the firing pins would be mandatory.

Doublegun:
If the dimensions of the firing pins and their holes in your Beretta 409 are in the same ball-park as the average bolt-action rifle, then I would suggest that bushing them is unnecessary. Bushing is not really done to handle escaped gas (though it does form an effective 'valve'), but rather to support the primer-cup so that it doesn't push the firing-pin back and rupture into the oversize hole.

--------------------
Marrakai
When the bull drops, the bullshit stops!
--------------------------------
www.marrakai-adventure.com.au

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Subject	Posted by	Posted on
Building a Double Rifle	Doublegun	27/04/07 05:53 AM
Re: Building a Double Rifle	Wayne	27/04/07 11:49 AM
Re: Building a Double Rifle	Doublegun	02/05/07 10:13 PM
Re: Building a Double Rifle	livinus	03/05/07 11:28 AM
Re: Building a Double Rifle	walksfar	03/05/07 03:24 PM
Re: Building a Double Rifle	Bramble	05/05/07 12:31 AM
Re: Building a Double Rifle	livinus	14/09/07 09:01 AM
Re: Building a Double Rifle	Marrakai	16/09/07 08:54 PM

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